VMIC VMIVME-7589 Single Board Computer

Module FeatureVMIC VMIVME-7589 is a single-slot 6U Eurocard VMEbus single board computer built around Intel Pentium MMX processor with 166 / 200 / 233 MHz speed options. It supports up to 128 MB SDRAM via 168-pin DIMM socket, equipped with 32 KB battery-backed nonvolatile SRAM for critical configuration data and 8 MB bootable flash memory on secondary IDE interface. Integrated 64-bit PCI SVGA graphics controller with 2 MB SGRAM video buffer. Onboard 10/100 Mbps fast Ethernet controller for network communication. Hardware byte swap circuit enables seamless data exchange between little-endian X86 and big-endian VME slave modules. Includes standard PC/AT peripherals, real-time clock and programmable watchdog timer for system fail-safe recovery. Front panel carries PS/2 keyboard and mouse connectors. Rugged industrial PCB construction, widely used in legacy turbine control, aerospace test and data acquisition VME chassis systems.

Working principleThe Pentium MMX CPU executes embedded operating system and user application code. PCI-to-VME bridge implements VMEbus master and slave functions for high-speed data access to other VME modules. Integrated SVGA engine handles display output; fast Ethernet controller manages network transmission. Battery-backed SRAM preserves key setup parameters after power loss. Flash memory stores boot firmware and optional application images. Watchdog timer automatically triggers hardware reset upon software lockup. Hardware byte-swap logic eliminates endian conversion overhead for cross-platform VME communication.

Onboard componentsIntel Pentium MMX CPU, 168-pin DIMM socket, PCI SVGA graphics chip, 10/100 Ethernet PHY, 32 KB battery-backed SRAM, 8 MB flash memory, flash BIOS chip, watchdog timer logic, PCI-VME bridge, VME J1/J2 transceivers, front panel I/O connectors, status LED indicators.

LED indicatorsFront panel LED indicators for power, CPU heartbeat, Ethernet link/activity and system fault warning.

Hardware self-diagnosisVisual inspection of PCB, front panel ejectors and solder joints; power-on POST self-test; memory read/write cyclic verification; VME register communication test; Ethernet loopback test; NVRAM retention test; watchdog function and BIOS version check.

Programming softwareSupports VxWorks, Linux, Windows NT embedded OS; VMIC VME device driver suite, BIOS configuration utility and dedicated board diagnostic firmware.

Electrical & Process ParametersModel: VMIVME-7589 Device type: 6U VMEbus single board computer Bus standard: VMEbus IEEE1014 Processor: Intel Pentium MMX (166 / 200 / 233 MHz) Memory: Max 128 MB SDRAM, 32 KB battery-backed SRAM, 8 MB boot flash Control mode: VME master / slave operation, hardware watchdog, endian byte swap Power supply: +5 V from VME backplane Cooling: Convection cooling Protection: Over current, ESD protection, watchdog auto-reset Mounting: Standard 6U VME front panel ejector locking Protection class: Conformal coating optional

Mechanical & StructureMounting: Standard single-slot 6U VME Eurocard Protection class: PCB with optional conformal coating

EnvironmentalOperating temperature: 0℃ ~ +55℃ Storage temperature: -40℃ ~ +85℃ Ambient humidity: 5~95% non-condensing Certification: CE compliant Status: VMIC legacy Pentium VME single board computer

InstallationFollow ESD safety procedure before handling. Fully power off VME chassis. Insert VMIVME-7589 into vacant 6U VME slot and lock front panel ejector latches. Connect front panel SVGA, PS/2 keyboard/mouse and Ethernet peripherals. Enter BIOS to configure boot sequence and watchdog parameters. Install OS and VMIC VME drivers, run full board diagnostic before commissioning.

InterfaceVME J1/J2 backplane connector, 10/100 RJ45 Ethernet, SVGA video, PS/2 keyboard/mouse, IDE storage interface via P2 rear I/O.

DiagnosticBoard fails POST: faulty DIMM memory, defective CPU chip, insufficient backplane power. VME communication abnormal: poor backplane contact, missing bus termination, PCI-VME bridge fault. NVRAM data loss: backup battery depletion or SRAM chip failure. Ethernet no link: damaged cable, PHY chip failure, incorrect duplex configuration. Watchdog fails to trigger: wrong BIOS watchdog parameter setup.

Product BriefVMIVME-7589 VMIC 6U VME single board computer,Pentium MMX CPU,battery-backed SRAM and PCI SVGA,for legacy industrial control,aerospace test and VME data acquisition chassis systems.